Transmission-gear.



J. L. BANDIERA. TRANSMISSION GEAR.

APPLICATION FILED MAY 12. 1916.

1 $38,623. I Patented Aug. 28, 191-7.

Lil

': risen JQSEPH I!- BIERA, OF BOSTON, MASSACHUSETTS.

TRANSMISSIQN- GEAR.

- Specification of Letters Patent.

Patented Aug. 28, 1937.

Application filed May 12,1916. Serial No. 97,071.

likely to readily become deranged, andto insure quiet operation and prevent stripping of the gears.

In the drawing Figure 1. 1s a perspective view illustrating my invention. Fig. 2 is a side elevation.

As shown .1 is the driven shaft and 2 the driving shaft having a clutch 3 which may be constructed and thrown in any known manner.

As appropriate means for mounting the gears, I have shown a block l adapted to be mounted at any suitable portion of the frame of the ,maehineand having a plate 5 in sliding engagement therewith so that the plate may" move lengthwise of the bloclc to bring the gear of the driven shaft mto mesh with the desired operating gear. The block and plate are curved to correspond with the'radius of the driven shaft 1. As

illustrated a dovetail connection 6' is employed between the block and plate to permit'the latter to move easily, and to hold the plates against displaoement.

.1 form the block and the plate with holes 7 through which a locking pin 8- may ex- 40 tend to hold the plate at the desired position. This pm is shown connected by a compensator 9 With the clutch 3 so that when the clutch'is out the locking pin will be withdrawn from the holes to permit of the movement'of the plate.

All of the driving gears 10,- 12, 13, 14 are constantly in mesh. As shown in Fig.2 the gears 1O, 12 and 13 are, by their intermediate pinions, adapted for forward driving while the gear 14 is for the reverse, the gears otherwise varying according to their diameters. The gear is keyed on the driving shaft 2, and. gear 15 is keyed on driven shaft 1. Y

The gear 15 of the drlven shaft may be shiftedinto engagement with any one of the gears 10, 12, 13, 14. I have shown the shaft 1 extending through a bearing 16 mounted on the plate 5 so that as this plate is shifted on the block 4: the gear 15 may be brought to the desired position.

Any appropriate means may be employed for shifting the plate. I have shown a hand lever 17 connected with the plate by a bell crank 18, the hand lever beingmovable over the quadrant suitably notched to correspond with the various gear connections.

The holes 7 are arranged to correspohdwith thesepositions of the hand'lever'so that when the clutch is thrown in the locking pin will pass through registering slots and a hold the plate at the desired position to maintain the gear 15 in engagement with any one of the transmission gears.

I claim as-my invention 1. The combination with a driving shaft having a clutch and a series of intermeshing gears, of a driven shaft having a gear adapted to engage some one of said former gears, and means operated by the throwingin of said clutch for locln'ng said driven shaft gear in an operative position.

2. The combination with a driving shaft having a clutch and a series of intermeshing gears, of a driven shaft having a gear adapted to engage some one of said former gears, meansfor shifting said driven shaft, and a locking device connecting said shifting means with said clutnh. 7

3. The combination with a driving shaft having a clutch, a rigidly mounted block, a. train of intermeshing gears mounted on said block and operated by said shaft, 'of a driven shaft,.. a plate forming a bearing for said driven shaft and movable on said block, a gear carried by said driven shaft adapted to mesh with some one of said former gears,

and means for locking said plate to said block. p

4. The combination with a series of variable gears, a driving shaft for operating.

said gears and having a clutch, a driven shaft having a gear adaptedto mesh with some one of said former gears, means for shifting said driven shaft, and a locking means for said driven shaft rendered operative or ineifective by said clutch.

5]. Id a power transmission, a driving shaftend a driven shaft, a block having a series of gears thereon operated by said driving shaft, said block having a series of holes, a plate movable on said block and forming a bearing for said drivennshaft, a, In testimony whereof, I have signed this gear on said-driven shaft, said plate having specificatiqnin the presence' of two suba series of holes, a locking pin adapted to scribing witnesses.

be received by registering holes, and means JOSEPH L. BANDIERA. 5 actuated when said driving shaft is ren- Witnesses:

dered operative for inserting said locking WILMOT R. EVANS, J12,

pin. CARL H. Gnmson.

Genie: o this patent may be obtaiz ed for five cent: each, by adflreulng the Commissioner of Pateim, 

